Portion of a floor tile



FIG. 1 is a top plan view of a portion of a floor tile according to the new design;

FIG. 2 is a top perspective view of the portion of a floor tile of FIG. 1;

FIG. 3 is a side view of the portion of a floor tile of FIG. 1, with the other side being a mirror image thereof; and,

FIG. 4 is an enlarged fragmentary view of the portion of a floor tile of FIG. 1.

The design is the portion of the floor tile shown in solid lines in the drawing. The portions shown in stippled lines do not form part of the design. 

CLAIM The ornamental design for a portion of a floor tile, as shown and described. 